Evaluating soil-water conserving performance of land management strategies for spoil tips on the Chinese Loess Plateau

Zhang, Letao; Wang, Hongtao; Wei, Yi‐Yuan; He, Mengzhen; Dong, Junwu; Hongwei, Tian; Gao, Zhifeng

doi:10.1016/j.jenvman.2022.115701

Cited by 3 publications

(1 citation statement)

References 24 publications

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“…In recent years, the uncontrolled development of coal and groundwater mineral resources and population increases have resulted in the ecological environment deteriorating severely [3]. The ecological environment of the Loess Plateau is facing increasing challenges such as agricultural irrigation [4], coal mining [5], surface runoff reduction [5], and land desertification [6]. The Loess Plateau region has become a research topic in watershed hydrology and social resources [7].…”

Section: Introductionmentioning

confidence: 99%

Associations between Surface Deformation and Groundwater Storage in Different Landscape Areas of the Loess Plateau, China

Liu,

Zhang,

Fan

et al. 2024

Land

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The Loess Plateau is an important grain-producing area and energy base in China and is an area featuring dramatic changes in both surface and underground processes. However, the associations between surface deformation and groundwater storage changes in different landscape types in the region are still unclear. Based on Sentinel-1 and GRACE (Gravity Recovery and Climate Experiment) data, this study monitored and verified the surface deformation and groundwater storage changes in different landscape types, such as those of the Kubuqi Desert, Hetao Irrigation District, Jinbei Mining Area, and Shendong Mining Area, in the Loess Plateau of China from 2020 to 2021. Through time series and cumulative analysis using the same spatial and temporal resolution, the associations between these two changes in different regions are discussed. The results show that: (1) the surface deformation rates in different landscape types differ significantly. The minimum surface deformation rate in the Kubuqi Desert is −5~5 mm/yr, while the surface deformation rates in the Hetao Irrigation District, the open-pit mine recovery area in the Jinbei Mining Area, and the Shendong Mining Area are −60~25 mm/yr, −25~25 mm/yr, and −95.33~26 mm/yr, respectively. (2) The regional groundwater reserves all showed a decreasing trend, with the Kubuqi Desert, Hetao Irrigation District, Jinbei Mining Area, and Shendong Mining Area declining by 359.42 mm, 103.30 mm, 45.60 mm, and 691.72 mm, respectively. (3) The surface elasticity deformation had the same trend as the temporal fluctuation in groundwater storage, and the diversion activity was the main reason why the temporal surface deformation in the Hetao Irrigation District lagged behind the change in groundwater storage by 1~2 months. The measure of “underground water reservoirs in coal mines” slows down the rate of collapse of coal mine roof formations, resulting in the strongest time-series correlation between mild deformation of the surface of the Shendong mine and changes in the amount of groundwater reserves (R = 0.73). This study analyzes the associations between surface deformation and groundwater storage changes in different landscape areas of the Loess Plateau of China and provides new approaches to analyzing the dynamic associations between the two and the causes of changes in both variables.

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Section: Introductionmentioning

confidence: 99%

Associations between Surface Deformation and Groundwater Storage in Different Landscape Areas of the Loess Plateau, China

Liu,

Zhang,

Fan

et al. 2024

Land

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Effect of Terraces and Rainfall on Water and Soil Loss in Pinus tabulaeformis Plantations in the Semiarid Loess Hilly Region of China

Huang,

Wei,

Chen

2024

Ecohydrology

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The Loess Plateau is one of the most severely eroded areas in the world. A series of ecological measures (e.g., terracing, afforestation and reforestation) have been implemented to rehabilitate the environment. However, consecutive field observations are still inadequate regarding the benefits of eco‐measures on erosion reductions. In this study, surface runoff and soil loss were monitored at the plots of Pinus tabulaeformis with two different terraces and natural slope, including fish scale pits with Pinus tabulaeformis (F–P.t), control slope (natural slope) with Pinus tabulaeformis (C–P.t) and zig terraces with Pinus tabulaeformis (Z–P.t) in the growing season of 2015–2021. Results showed that terraces played a key role in reducing water and soil loss compared to natural slopes. The zig terraces had the greatest runoff and soil loss reduction benefits (43.38% and 67.75%, respectively). Maximum runoff and sediment occurred under the rainfall with high intensity and short duration. Runoff depth was better explained by rainfall depth and rainfall duration compared to soil loss rate. Compared with the natural slope, the degree of explanation of multiple regression models for terrace plots dropped to 36.1%–41.2% for runoff depth and declined to 12.7%–19.5% for soil erosion rate. This study revealed that different terracing measures with afforestation can effectively contribute to soil and water conservation in the Loess Plateau of China. The combination of zig terraces and P. tabulaeformis is recommended as it has the best potential for improving the micro‐topography, storing rainfall and decreasing soil erosion. These results can help evaluate ecological restoration projects on the Loess Plateau and provide a scientific basis for the implementation of terracing projects in similar areas.

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Water erosion processes: Mechanisms, impact, and management strategies

Firoozi,

Firoozi

2024

Results in Engineering

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Evaluating soil-water conserving performance of land management strategies for spoil tips on the Chinese Loess Plateau

Cited by 3 publications

References 24 publications

Associations between Surface Deformation and Groundwater Storage in Different Landscape Areas of the Loess Plateau, China

Associations between Surface Deformation and Groundwater Storage in Different Landscape Areas of the Loess Plateau, China

Effect of Terraces and Rainfall on Water and Soil Loss in Pinus tabulaeformis Plantations in the Semiarid Loess Hilly Region of China

Water erosion processes: Mechanisms, impact, and management strategies

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